一一 yīyīyīyīlíng HSK7 one by one Origin Definitions Defs Strokes Stroke Words Sentences Sents yīyī one by one 一 yī reduplication one one; the number 1; single; aloneyīyīlíng 110 一 yāo one (digit reading) (used for clarity when reading out a string of digits such as phone numbers) one一 yāo one (digit reading) (used for clarity when reading out a string of digits such as phone numbers) one